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Bacterial Infections > Bacterial infections II-Andrews/Bolognia > Flashcards

Bacterial infections II-Andrews/Bolognia Flashcards

1
Q

In P. Aeruginosa what causes the green color? Blue? Black?

A

Green-fluorescein, Blue-pyocyanin, Black-pyomelinin

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2
Q

What causes ecthyma gangrenosum?

A

P. Aeruginosa-must assume pseudomonal sepsis

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3
Q

What serotype of pseudomonas causes hot tub follicutlitis?

A

Serotype 0-11

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4
Q

What is the most common cause of malakoplakia?

A

E.Coli

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5
Q

What will you see in histopathology of malakoplakia?

A

Von-hansemann cells-Sheets of histiocytes with foamy eosinophilic granular cytoplasm and small, usually eccentric nuclei
Michaelis-Gutmann bodies:
Calcified, concentrically laminated intracytoplasmic basophilic bodies

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6
Q

What causes ganuloma inguinale?

A

klebsiella granulomatis

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7
Q

A beefy red painless ulcer/papule without regional lymphadeonpathy?

A

Granuloma inguinale

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8
Q

What stains do you use to look for donovan bodies?

A

Geimsa stain/toulidine blue associated with granuloma inguinale

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9
Q

What is the parasitized macrophage ddx?

A 
His Pen GiRL
Histoplasmosis
Penicillium marfenii
Granuloma Inguinale 
Rhinoscleroma
Leishmaniasis
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10
Q

What causes chancroid?

A

Haemophilus ducreyi

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11
Q

A tender genital ulcer with unilateral painful adenitis (may suppurate “bubo”)?

A

Chancroid-haemophilus ducreyi

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12
Q

How do you treat chancroid?

A

1 gm azithromycin x1

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13
Q

What causes lymphogranuloma venereum?

A

Chlamydia trachomatis serotypes L1, L2, L3

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14
Q

Painless herpetic ulcer that progresses to painful lymphnodes (bubo) with groove sign, then years later ano-genito-rectal syndrome?

A

lymphogranuloma venereum

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15
Q

How do you treat lympogranuloma venereum?

A

Doxycycline 100 mg BID x 3 wks

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16
Q

What puts a person at risk for gonococcal infection?

A

C5-C9 deficiency

17
Q

What is the gold standard for diagnosis of gonococcal disease?

A

Growth on thayer-martin agar

18
Q

In the neiseria meningitidis vaccine is effective against what serotypes?

A

A, C, Y W-135

19
Q

In typhoid fever caused by salmonella where do you see the “rose spots”?

A

2-5mm rose-colored macules or papules on the ant trunk between the nipples and umbilicus

20
Q

Hebra nose: nasal enlargement, deformity, and destruction of the nasal cartilage is caused by what?

A

klebsiella rhinoscleromatis

21
Q

What do you see in histopathology of rhinoscleroma?

A

Mikulicz’s cells (parasitized histiocytes), Russell bodies: plasma cells with eosinophillic aggregates of Immunoglobulins

Bacterial Infections (3 decks)

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